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Doc: Improve description of the "batch_size" option for postgres_fdw.

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Document that the actual number of rows postgres_fdw inserts at once in
the COPY case is determined in a similar way to the INSERT case, but it
has a restriction that does not apply to the INSERT case.

Follow-up for commit 97da48246.

Reviewed-by: Daniel Gustafsson and Tatsuo Ishii
Discussion: https://postgr.es/m/CAPmGK14NMXDMW4qK9kHUzudN9t71uvrMKPna02X6zwgQJ6E1_g%40mail.gmail.com
This commit is contained in:
Etsuro Fujita 2023-03-24 12:55:00 +09:00
parent bcaa1fafc8
commit 0f0a7183d7
1 changed files with 5 additions and 1 deletions
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doc/src/sgml/postgres-fdw.sgml
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@ -437,7 +437,11 @@ OPTIONS (ADD password_required 'false');
</para>
<para>
This option also applies when copying into foreign tables.
This option also applies when copying into foreign tables. In that case
the actual number of rows <filename>postgres_fdw</filename> copies at
once is determined in a similar way to the insert case, but it is
limited to at most 1000 due to implementation restrictions of the
<command>COPY</command> command.
</para>
</listitem>
</varlistentry>